X a apparatus for drawing beer



(No Model.)

H. .METZGER.

APPARATUS FOR DRAWING BEER.

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Paitented Dec. 1, 1885 N PETERS. Pholo-L bugmp Usurnio Smarts ATFNT @rtrcn.

APPARATUS FUR DRAWlNG BEER.

SPECIFIGATEOII forming part of Letters ,Patent No. 381, t2e, dated December 1, 188 5.

Application filed June 5, 1885. Serial No.167,756. (No model.)

To etZZ whom it may concern:

Be it known that I, l-IERMANN Mnrzena, of North Springfield, Greene county, State of Missouri, have invented a certain new and useful Improvement in Apparatus for Drawlng Beer, 850., of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

This is a device which is used in tapping the barrel, and which is used in combination with any form of air-pump, as hereinafter set forth.

Figure 1 is a side view of a barrel with part broken out, and showing the improvement ap plied thereto. Fig. 2 is a section at 2 2, Fig. 5, showing the parts applied to the barrel, but the cork not yet forced out of its seat in the metal bung. Fig. 3 is part in elevation and part in section at 2 2, showing the conduit-pipe just after the dislodgnient of the cork. Fig. 4. is a transverse section at 4. l, Fig. 3. Fig. 5 is atransverse section at 5 5, Fig. 3. Fig. 6 is aside view of the expanding plug. Fig. 7 is an enlarged sectional view of the check-valve. Fig. 8 is a section at 8 8, Fig. 7, looking to ward the valve-seat; and Fig. 9 is a section at 9 9, looking in the opposite direction. Fig. 10 is an enlarged section of the check valve at 2 2, Fig. 5. Fig. 11 shows a wooden bung, to which my improvement may be applied.

A is a barrel, and B a metal bushing screwed into the bung-hole of the same, or, more correctly speaking, of a hole in the position of the bung-hole. The bushing B has an interior screw-thread, and into it is screwed a metal bung, 0, having a cylindrical recess, 0, from whose bottom extends the orifice marked 1), into which the cork E is inserted, and through which the conduitpipe F passes. This pipe should have a stopped inner end, with a number of small holes, f, for the entrance of the liquid from the barrel into the pipe. Connected with the upper end of the conduit-pipe F is a faucet or spout, through which the liquid is discharged. I The conduitpipe extends centrally through a sleeve, G, and is arranged to slide therein, working through a stuffing-box, H, having a rubber packing, 1. Below the stuffing-box there is an annular space or passage, J, between the pipe F and the sleeve, which, when the barrel is tapped, communicates with the interior of the barrel through the cork orifice D. Through the side of the sleeve G is an orifice, K, forming a passage for the air from the force-pump. The orifice K is counterbored, and the counterbore is screw-threaded, to re ceive the screw-threaded end of the checkvalve plug L L, said plug having a central bore extending through both parts in line with the orifice K. The outer part, L, of the valve-plug has a head, over which is slipped the end of a hose, M, connected with the airpump. This part L has a valve-seat, N, against which the valve 0 closes, and prevents the outward passage of air or gas, while the inward-moving air from the air-pump carries the valve from its seat against the inner end or face, P, of the valve-chamber. The face P has grooves p, which allow the entering air to pass beneath the valve into the orifice K. The valve is smaller in diameter than the valve chamber, and works within guides which may be attached either to the part L or L, but preferably to the part L. This check-valve is not claimed herein, being reserved for claim in separate application.

R is a circular collar which is screwed upon or otherwise secured to the lower end of the sleeve G, and which constitutes the end of the expansion-plug, the other parts of the expansion-plug being a screw sleeve or gland, R, and a rubber packing-ring, R, which surrounds the sleeve G between the parts R and R. The sleeve R has a female screw-thread, f, at the upper end, which works on the male screw 9 of the sleeve Gr, so that by turning the sleeve R down on the sleeve G the rubber packingring R is compressed and its diameter increased, causing the plug R R R to fit tightly in the recess 0. r h are knobs by which the sleeve R and the gland of the stuffing-box are turned.

The manner of using the device is as fol lows: The bushing B is alone inserted in the barrel when the latter is to be filled. When it has been filled, the metal bung (Ja cork, E, having been inserted from the inner side, (see Fig. 2)-is screwed into the bushing, 21. rubber gasket, 0, being between the flange c of the bung C- and the bushing B to form a tight joint. The plug R R Rflwith interior sleeve, G, istheninserted in the recess 0. (SeeFig. 2.) The sleeve R is then screwed down upon the rubber ring R fixing the plug in the recess with atightjoint. The conduit'pipe F is then pushed down, ejecting the cork E from the hole D, and may be pushed down until it reaches the other side of the barrel, as seen in Fig. 1.

In Fig. 11 is shown a wooden bung, which may be used with my improvement in place of the metal bung and bushing. This bung O is made with a recess, 0, and a recess, D, which should be somewhat greater in diameter than the conduit-pipe.

(l is a circular score, which is made so deeply in the bottom of the bung as to make it easy to break out the part of the bung beneath the recess D by the forcing in of the conduit-pipe.

I am aware that it has been proposed to place Within a bung-hole an expansible packingring, through which passes a tube screwthreaded upon its exterior for the reception of a correspondingly internally-threaded frusto-conical nut or eollar,whieh enters between said tube and packing, and thereby expands the latter. Such is not the equivalent of my device.

I elairn 1. An expansion-plug adapted to fit in a smooth cylindrical bore or recess, having a hollow sleeve or stem, a collar at the end of said stem, which is intended forinsertion into the bore or recess, a sleeve screwing on the stern, an elastic packing-ring surrounding the stem between said sleeve and collar, and a tube passing adjustably through said hollow sleeve or stem, substantially as and for the purpose set forth. I

2. The combination of a bung having a recess open at its outer side, a conduit-pipe passing through the bung, a sleeve surrounding said pipe, an expanding ring and an abutting collar therefor surrounding said sleeve, and a gland,also surrounding'said sleeve and screwthreaded thereto, substantially as and for the purpose set forth.

3. The combination of a sleeve, G, with a conduit-pipe passing through it and through a stuffing-boX of said sleeve, and having endwise movement therein, and an expansive packing surrounding said sleeve and fixed collar B, and screw sleeve or gland 11,0011- structed to compress the expansive packing and force it outward against the side of the recess 0. g

4. The combination of a conduit-pipe passing through a stufiing-boX in a pipe or sleeve with an annular passage below the stuflingbox between the conduit-pipe and the sleeve, and an air'pipe in communication with the annular passage, and an abutting collar and a screw-threaded gland upon said sleeve, and an expanding ring between said collar and gland, all constructed and arranged substantially as set forth.

HERMANN METZGER.

Witnesses:

SAML. KNIGHT, GEO. H. KNIGHT. 

